It's best not to do this, especially in some good universities. The location of the study room is very scarce. If you occupy a seat, you will look selfish and waste public resources. In the gap where you haven't been, you can let others use it It's too much for you not to study actively. On the other hand, your plan can't keep up with the change. Maybe your original plan was to study in the study room, but
If you just want to sit and study with your friends, if you ask them to help you sit down, then you will have a good time with your friends in the future. Of course, if the study room is empty or you just delay for a few minutes and ask a friend to sit for you, I think everyone can understand.